1
|
Adelantado C, Lapizco-Encinas BH, Jordens J, Voorspoels S, Velimirovic M, Tirez K. Capillary Electrophoresis as a Complementary Analytical Tool for the Separation and Detection of Nanoplastic Particles. Anal Chem 2024; 96:7706-7713. [PMID: 38688471 PMCID: PMC11099890 DOI: 10.1021/acs.analchem.4c00822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
Capillary electrophoresis (CE) is presented as a technique for the separation of polystyrene nanoparticles (NPs, particle diameters ranging from 30 to 300 nm) through a bare fused silica capillary and ultraviolet detection. The proposed strategy was also assessed for other types of nanoplastics, finding that stronger alkaline conditions, with an ammonium hydroxide buffer (7.5%, pH = 11.9), enabled the separation of poly(methyl methacrylate), polypropylene, and polyethylene NP for the first time by means of CE for particle diameters below 200 nm. Particle behavior has been investigated in terms of its effective electrophoretic mobility, showing an increasing absolute value of effective electrophoretic mobility from the smaller to the larger sizes. On the other hand, the absolute value of surface charge density decreased with increasing size of NPs. It was demonstrated and quantified that the separation mechanism was a combination of linear and nonlinear electrophoretic effects. This work is the first report on the quantification of nonlinear electrophoretic effects on nanoplastic particles in a CE system.
Collapse
Affiliation(s)
- Carlos Adelantado
- Flemish
Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
| | - Blanca H. Lapizco-Encinas
- Microscale
Bioseparations Laboratory and Biomedical Engineering Department, Rochester Institute of Technology, 160 Lomb Memorial Drive, Rochester, New York 14623, United States
| | - Jan Jordens
- Flemish
Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
| | - Stefan Voorspoels
- Flemish
Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
| | - Milica Velimirovic
- Flemish
Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
| | - Kristof Tirez
- Flemish
Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium
| |
Collapse
|
2
|
Itterheimová P, Dosedělová V, Kubáň P. Use of metal nanoparticles for preconcentration and analysis of biological thiols. Electrophoresis 2023; 44:135-157. [PMID: 35892259 DOI: 10.1002/elps.202200142] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/11/2022] [Accepted: 07/19/2022] [Indexed: 02/01/2023]
Abstract
Metal nanoparticles (NPs) exhibit several unique physicochemical properties, including redox activity, surface plasmon resonance, ability to quench fluorescence, biocompatibility, or a high surface-to-volume ratio. They are being increasingly used in analysis and preconcentration of thiol containing compounds, because they are able to spontaneously form a stable Au/Ag/Cu-S dative bond. They thus find wide application in environmental and particularly in medical science, especially in the analysis of biological thiols, the endogenous compounds that play a significant role in many biological systems. In this review article, we provide an overview of various types of NPs that have been applied in analysis and preconcentration of biological thiols, mainly in human biological fluids. We first discuss shortly the types of NPs and their synthesis, properties, and their ability to interact with thiol compounds. Then we outline the sample preconcentration and analysis methods that were used for this purpose with special emphasis on optical, electrochemical, and separation techniques.
Collapse
Affiliation(s)
- Petra Itterheimová
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic.,CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Věra Dosedělová
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic.,CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Petr Kubáň
- Department of Bioanalytical Instrumentation, Institute of Analytical Chemistry, Czech Academy of Sciences, Brno, Czech Republic
| |
Collapse
|
3
|
Hong T, Zheng R, Qiu L, Zhou S, Chao H, Li Y, Rui W, Cui P, Ni X, Tan S, Jiang P, Wang J. Fluorescence coupled capillary electrophoresis as a strategy for tetrahedron DNA analysis. Talanta 2021; 228:122225. [PMID: 33773730 DOI: 10.1016/j.talanta.2021.122225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/10/2021] [Accepted: 02/13/2021] [Indexed: 10/22/2022]
Abstract
A strategy based on fluorescence coupled capillary electrophoresis (CE-FL) was developed for analyzing tetrahedron DNA (TD) and TD-doxorubicin (DOX) conjugate. Capillary gel electrophoresis exhibited desirable performance for separating TD and DNA strands. Under the optimized conditions, satisfactory repeatability concerning run-to-run and interday repeatability was obtained, and relative standard deviation value of resolution (n = 6) was 0.64%. Furthermore, the combination of CE and fluorescence detection provided a sensitive platform for quantifying TD concentration and calculating the damage degree of TD. The electrophoretograms indicated that CE-FL was a suitable TD assay method with high specificity and sensitivity. In addition, the application of CE-FL for TD fluorescence resonance energy transfer (FRET) research was also explored. Two types of DNA strands were utilized to interfere the formation of TD. The impact of partially complementary chain and completely complementary chain on FRET signal was explored, and the influence mechanism was discussed. After applying CE-FL for characterizing TD, we also combine CE and FRET to analyze TD-DOX conjugate. CE presented a favourable technique to monitor DOX loading and releasing processes. These noteworthy results offered a stepping stone for DNA nanomaterials assay by using CE-FL.
Collapse
Affiliation(s)
- Tingting Hong
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Ronghui Zheng
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Lin Qiu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Shuwen Zhou
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Hufei Chao
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Ying Li
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Wen Rui
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Pengfei Cui
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Xinye Ni
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, PR China.
| | - Songwen Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, 172 Tongzipo Road, Changsha, Hunan, 410013, China; Jiangsu Dawning Pharmaceutical Co., Ltd., Changzhou, Jiangsu, 213100, China.
| | - Pengju Jiang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Jianhao Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China; Changzhou Le Sun Pharmaceuticals Co., Ltd., Changzhou, Jiangsu, 213125, China; Jiangsu Yue Zhi Biopharmaceutical Co., Ltd., Changzhou, Jiangsu, 213125, China.
| |
Collapse
|
4
|
Oszwałdowski S. Capillary electrophoresis study on evolution of phase of mixed micelles. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-020-04797-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Zhang H, Pan J, Zhou Q, Xia F. Nanometal Thermocatalysts: Transformations, Deactivation, and Mitigation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005771. [PMID: 33458963 DOI: 10.1002/smll.202005771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Nanometals have been proven to be efficient thermocatalysts in the last decades. Their enhanced catalytic activity and tunable functionalities make them intriguing candidates for a wide range of catalytic applications, such as gaseous reactions and compound synthesis/decomposition. On the other hand, the enhanced specific surface energy and reactivity of nanometals can lead to configuration transformation and thus catalytic deactivation during the synthesis and catalysis, which largely undermines the activity and service time, thereby calling for urgent research effort to understand the deactivating mechanisms and develop efficient mitigating methods. Herein, the recent progress in understanding the configuration transformation-induced catalytic deactivation within nanometals is reviewed. The major pathways of configuration transformations, and their kinetics controlled by the environmental factors are presented. The approaches toward mitigating the transformation-induced deactivation are also presented. Finally, a perspective on the future academic approaches toward in-depth understanding of the kinetics of the deactivation of nanometals is proposed.
Collapse
Affiliation(s)
- Hanlei Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| | - Jing Pan
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| | - Qitao Zhou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan, Hubei, 430078, P. R. China
| |
Collapse
|
6
|
Adelantado C, Zougagh M, Ríos Á. Contributions of Capillary Electrophoresis in Analytical Nanometrology: A Critical View. Crit Rev Anal Chem 2021; 52:1094-1111. [PMID: 33427485 DOI: 10.1080/10408347.2020.1859983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
An overview on the increasing role of capillary electrophoresis in characterization and direct analysis of nanomaterials is herein presented. The niche of electrophoretic approaches in nanometrology is so relevant that nonmetallic, metal, metal oxide nanoparticles, and quantum dots have been analyzed to be targeted via capillary electrophoresis with conventional detection systems or coupling arrangements aimed at increasing selectivity and sensitivity toward either pristine or conjugated nanoparticles. Moreover, parameters altering intrinsic properties of nanoparticles may be optimized to gather the desired results and identify nanomaterials according to their size, shape, or associations with binding agents. The usefulness and quickness of capillary electrophoresis for quantifying or screening ultrasmall-sized particles enables this technique to set an example for analysis of standards or previously synthesized nanostructures in research or routine laboratories. Abundant evidence of the suitability of electrophoretic approaches for characterization and direct determination of nanomaterials in actual samples has been provided in this review, together with a discussion about hyphenation with state-of-the art detectors and comparison between capillary electrophoresis with other separation approaches. This permits scientific community to be optimistic in the short term.
Collapse
Affiliation(s)
- Carlos Adelantado
- Department of Analytical Chemistry and Food Technology, Faculty of Science and chemical Technologies, University of Castilla-La Mancha, Ciudad Real, Spain.,Regional Institute for Applied Scientific Research, IRICA, Ciudad Real, Spain
| | - Mohammed Zougagh
- Regional Institute for Applied Scientific Research, IRICA, Ciudad Real, Spain.,Department of Analytical Chemistry and Food Technology, Faculty of Pharmacy, University of Castilla-La Mancha, Albacete, Spain
| | - Ángel Ríos
- Department of Analytical Chemistry and Food Technology, Faculty of Science and chemical Technologies, University of Castilla-La Mancha, Ciudad Real, Spain.,Regional Institute for Applied Scientific Research, IRICA, Ciudad Real, Spain
| |
Collapse
|
7
|
Oszwałdowski S. Capillary electrophoresis study on segment/segment system and its role in characterization of nanoparticles. J Chromatogr A 2019; 1601:365-374. [DOI: 10.1016/j.chroma.2019.05.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 05/20/2019] [Accepted: 05/26/2019] [Indexed: 12/22/2022]
|
8
|
Feng J, Cao X, Pan Q, He Y. Direct observation of single plasmonic metal nanoparticle reaction in microcolumn with chromatic‐aberration‐free LASER light‐sheet scattering imaging. Electrophoresis 2019; 40:2227-2234. [DOI: 10.1002/elps.201900071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/31/2019] [Accepted: 06/02/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Jingjing Feng
- Department of chemistry Tsinghua University Beijing P. R. China
| | - Xuan Cao
- College of pharmacy, Institute of pharmacy and pharmacology University of South China Hengyang Hunan P. R. China
| | - Qi Pan
- Department of chemistry Tsinghua University Beijing P. R. China
| | - Yan He
- Department of chemistry Tsinghua University Beijing P. R. China
| |
Collapse
|
9
|
Dziomba S, Ciura K, Dawid M. The on-line preconcentration of nanoparticles in electromigration techniques. J Chromatogr A 2019; 1606:360332. [PMID: 31262513 DOI: 10.1016/j.chroma.2019.06.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 02/07/2023]
Abstract
Electromigration techniques have recently emerged as an alternative analytical tool for nanoparticles characterization. Due to the high throughput capability and separation efficiency their application for detection/quantification of nanomaterials in samples of various origin has attracted much attention. While the electromigration techniques are known to suffer from insufficient detection sensitivity, a number of papers investigating on-line preconcentration of nanoparticles in capillary electrophoresis was addressed to the issue. In this work the available literature on nanoparticles stacking in electrodriven separation techniques was reviewed. The discussion was supported by theoretical background. A special emphasis was put on the stability of nanoparticles dispersion during electrophoretic process. The considerations on future perspectives were included in final remarks.
Collapse
Affiliation(s)
- Szymon Dziomba
- Department of Toxicology, Faculty of Pharmacy, Medical University of Gdansk, 107 Hallera Street, 80-416 Gdansk, Poland.
| | - Krzesimir Ciura
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdansk, 107 Hallera Street, 80-416 Gdansk, Poland
| | - Marta Dawid
- Department of Toxicology, Faculty of Pharmacy, Medical University of Gdansk, 107 Hallera Street, 80-416 Gdansk, Poland
| |
Collapse
|
10
|
Space- and time-resolved small angle X-ray scattering to probe assembly of silver nanocrystal superlattices. Nat Commun 2018; 9:4211. [PMID: 30310061 PMCID: PMC6181943 DOI: 10.1038/s41467-018-06734-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 09/14/2018] [Indexed: 11/08/2022] Open
Abstract
The structure of nanocrystal superlattices has been extensively studied and well documented, however, their assembly process is poorly understood. In this work, we demonstrate an in situ space- and time-resolved small angle X-ray scattering measurement that we use to probe the assembly of silver nanocrystal superlattices driven by electric fields. The electric field creates a nanocrystal flux to the surface, providing a systematic means to vary the nanocrystal concentration near the electrode and thereby to initiate nucleation and growth of superlattices in several minutes. Using this approach, we measure the space- and time-resolved concentration and polydispersity gradients during deposition and show how they affect the superlattice constant and degree of order. We find that the field induces a size-selection effect that can reduce the polydispersity near the substrate by 21% leading to better quality crystals and resulting in field strength-dependent superlattice lattice constants.
Collapse
|
11
|
Adam V, Vaculovicova M. Capillary electrophoresis and nanomaterials - Part I: Capillary electrophoresis of nanomaterials. Electrophoresis 2017; 38:2389-2404. [DOI: 10.1002/elps.201700097] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/02/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Vojtech Adam
- Department of Chemistry and Biochemistry; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Marketa Vaculovicova
- Department of Chemistry and Biochemistry; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| |
Collapse
|
12
|
Gilroy KD, Xia Y. Dimerization of Colloidal Particles through Controlled Aggregation for Enhanced Properties and Applications. Chem Asian J 2016; 11:2341-51. [DOI: 10.1002/asia.201600979] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Kyle D. Gilroy
- The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 (USA)
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 (USA)
- School of Chemistry&Biochemistry School of Chemical&Biomolecular Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| |
Collapse
|
13
|
Oszwałdowski S, Kubáň P. Capillary electrophoresis study on segment/segment system for segments based on phase of mixed micelles and its role in transport of particles between the two segments. J Chromatogr A 2015; 1412:139-50. [DOI: 10.1016/j.chroma.2015.08.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 08/04/2015] [Accepted: 08/06/2015] [Indexed: 12/31/2022]
|
14
|
Ban E, Yoo YS, Song EJ. Analysis and applications of nanoparticles in capillary electrophoresis. Talanta 2015; 141:15-20. [DOI: 10.1016/j.talanta.2015.03.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 03/13/2015] [Accepted: 03/14/2015] [Indexed: 10/23/2022]
|
15
|
Pyell U, Jalil AH, Pfeiffer C, Pelaz B, Parak WJ. Characterization of gold nanoparticles with different hydrophilic coatings via capillary electrophoresis and Taylor dispersion analysis. Part I: Determination of the zeta potential employing a modified analytic approximation. J Colloid Interface Sci 2015; 450:288-300. [DOI: 10.1016/j.jcis.2015.03.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/20/2015] [Accepted: 03/06/2015] [Indexed: 01/06/2023]
|
16
|
Oszwałdowski S, Kubáň P. Capillary electrophoresis study on phase of mixed micelles and its role in transport phenomena of particles. Anal Chim Acta 2015; 864:85-93. [DOI: 10.1016/j.aca.2015.01.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 01/09/2015] [Accepted: 01/12/2015] [Indexed: 12/27/2022]
|
17
|
Voráčová I, Klepárník K, Lišková M, Foret F. Determination of ζ-potential, charge, and number of organic ligands on the surface of water soluble quantum dots by capillary electrophoresis. Electrophoresis 2015; 36:867-74. [DOI: 10.1002/elps.201400459] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 12/04/2014] [Accepted: 12/10/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Ivona Voráčová
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| | - Karel Klepárník
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| | - Marcela Lišková
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| | - František Foret
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| |
Collapse
|
18
|
Kato M, Sasaki M, Ueyama Y, Koga A, Sano A, Higashi T, Santa T. Comparison of the migration behavior of nanoparticles based on polyethylene glycol and silica using micellar electrokinetic chromatography. J Sep Sci 2015; 38:468-74. [DOI: 10.1002/jssc.201401086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/12/2014] [Accepted: 11/12/2014] [Indexed: 01/14/2023]
Affiliation(s)
- Masaru Kato
- Graduate School of Pharmaceutical Sciences and GPLLI Program; The University of Tokyo; Tokyo Japan
| | - Minoru Sasaki
- Graduate School of Pharmaceutical Sciences and GPLLI Program; The University of Tokyo; Tokyo Japan
| | - Yukari Ueyama
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Ayaka Koga
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Akira Sano
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Tatsuya Higashi
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Tomofumi Santa
- Graduate School of Pharmaceutical Sciences and GPLLI Program; The University of Tokyo; Tokyo Japan
| |
Collapse
|
19
|
Praus P, Turicová M, Suchomel P, Kvítek L. Capillary isotachophoresis for separation of silver nanoparticles according to size. RSC Adv 2015. [DOI: 10.1039/c5ra10676a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Capillary isotachophoresis was used for the separation of Ag nanoparticles stabilized by gelatin according to their size.
Collapse
Affiliation(s)
- Petr Praus
- Department of Chemistry
- VŠB-Technical University of Ostrava
- 708 33 Ostrava-Poruba
- Czech Republic
- Institute of Environmental Technology
| | - Martina Turicová
- Department of Chemistry
- VŠB-Technical University of Ostrava
- 708 33 Ostrava-Poruba
- Czech Republic
| | - Petr Suchomel
- Department of Physical Chemistry
- Palacký University
- 771 46 Olomouc
- Czech Republic
| | - Libor Kvítek
- Department of Physical Chemistry
- Palacký University
- 771 46 Olomouc
- Czech Republic
| |
Collapse
|
20
|
Stanisavljevic M, Vaculovicova M, Kizek R, Adam V. Capillary electrophoresis of quantum dots: Minireview. Electrophoresis 2014; 35:1929-37. [DOI: 10.1002/elps.201400033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 02/17/2014] [Accepted: 03/13/2014] [Indexed: 12/11/2022]
Affiliation(s)
- Maja Stanisavljevic
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
| | - Marketa Vaculovicova
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| |
Collapse
|
21
|
Kitagawa F, Otsuka K. Recent applications of on-line sample preconcentration techniques in capillary electrophoresis. J Chromatogr A 2014; 1335:43-60. [DOI: 10.1016/j.chroma.2013.10.066] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/18/2013] [Accepted: 10/21/2013] [Indexed: 12/21/2022]
|
22
|
Sang F, Huang X, Ren J. Characterization and separation of semiconductor quantum dots and their conjugates by capillary electrophoresis. Electrophoresis 2014; 35:793-803. [DOI: 10.1002/elps.201300528] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/03/2013] [Accepted: 12/03/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Fuming Sang
- School of Marine Science and Technology; Harbin Institute of Technology; Weihai P. R. China
| | - Xiangyi Huang
- College of Chemistry & Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiaotong University; Shanghai P. R. China
| | - Jicun Ren
- College of Chemistry & Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiaotong University; Shanghai P. R. China
| |
Collapse
|
23
|
Comparative study on coating CdSe nanocrystals with surfactants. Mikrochim Acta 2013; 180:1341-1350. [PMID: 24078747 PMCID: PMC3779019 DOI: 10.1007/s00604-013-1062-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 07/11/2013] [Indexed: 02/02/2023]
Abstract
We have synthesized CdSe nanocrystals (NCs) in sizes from 2.2 to 5.1 nm passivated with hydrophobic trioctylphosphine oxide (TOPO) in combination trioctylphosphine (TOP) or tributylphosphine (TBP) to obtain particles of the type CdSe/TOPO/TOP or CdSe/TOPO/TBP. These NCs were then dispersed in aqueous solution of ionic or non-ionic surfactants (such as stearate, oleic acid, Tween) using a biphase (water and chloroform or hexane) transfer method. It is found that both the structure of the surfactant and the native surface of the ligand govern the coating of the NCs with surfactants. More specifically, the hydrophobicity-hydrophilicity balance of the surfactant regulates the coating efficacy, thereby transferring the NC from the organic to the aqueous phase. The type of ligand on the NCs and the kind of coating surfactant also affect photoluminescence (PL). The ratio of PL and absorbance unit (defined as PL per 0.1 AU) was implemented as a tool to monitor changes in PL intensity and wavelength as a function of size, coatings and surface defects. Finally, the distribution of CdSe nanocrystals between pseudophases in cloud point extraction was discussed based on experimental results. It was concluded that the size of CdSe nanocrystal present in an appropriate pseudophase is correlated with the way in which the non-ionic surfactant coats CdSe nanocrystals. FigureCoating of CdSe semiconductor nanocrystals with surfactants impacts nanocrystals' spectral features. Absorbance of first exciton absorption band was used to estimate ability of surfactant to disperse CdSe nanocrystals. Photoluminescence (PL) intensity and position of PL band were analysed in terms of nanocrystal's surface phenomena via surfactants applied for coating.
Collapse
|
24
|
Oszwałdowski S, Roberts KP, Timerbaev AR. Capillary zone electrophoresis of quantum dots dispersed in mixed micelles: New evidence of the concentration effect. J Chromatogr A 2013; 1305:320-7. [DOI: 10.1016/j.chroma.2013.07.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 07/09/2013] [Accepted: 07/12/2013] [Indexed: 12/12/2022]
|
25
|
Kim JY, Kim HB, Jang DJ. Electrophoretic separation of gold nanoparticles according to bifunctional molecules-induced charge and size. Electrophoresis 2013; 34:911-6. [DOI: 10.1002/elps.201200492] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 11/19/2012] [Accepted: 11/19/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Jong-Yeob Kim
- School of Chemistry; Seoul National University; Seoul; Korea
| | - Hyung-Bae Kim
- School of Chemistry; Seoul National University; Seoul; Korea
| | - Du-Jeon Jang
- School of Chemistry; Seoul National University; Seoul; Korea
| |
Collapse
|
26
|
Mikšík I, Lacinová K, Zmatlíková Z, Sedláková P, Král V, Sýkora D, Řezanka P, Kašička V. Open-tubular capillary electrochromatography with bare gold nanoparticles-based stationary phase applied to separation of trypsin digested native and glycated proteins. J Sep Sci 2012; 35:994-1002. [DOI: 10.1002/jssc.201101049] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ivan Mikšík
- Institute of Physiology; Academy of Sciences of the Czech Republic; Prague Czech Republic
| | - Kateřina Lacinová
- Institute of Physiology; Academy of Sciences of the Czech Republic; Prague Czech Republic
| | - Zdeňka Zmatlíková
- Institute of Physiology; Academy of Sciences of the Czech Republic; Prague Czech Republic
- Department of Analytical Chemistry; Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - Pavla Sedláková
- Institute of Physiology; Academy of Sciences of the Czech Republic; Prague Czech Republic
| | - Vladimír Král
- Department of Analytical Chemistry; Institute of Chemical Technology; Prague Czech Republic
| | - David Sýkora
- Department of Analytical Chemistry; Institute of Chemical Technology; Prague Czech Republic
| | - Pavel Řezanka
- Department of Analytical Chemistry; Institute of Chemical Technology; Prague Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry; Academy of Sciences of the Czech Republic; Prague Czech Republic
| |
Collapse
|
27
|
Application of quantum dots as analytical tools in automated chemical analysis: a review. Anal Chim Acta 2012; 735:9-22. [PMID: 22713912 DOI: 10.1016/j.aca.2012.04.042] [Citation(s) in RCA: 182] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 04/24/2012] [Accepted: 04/27/2012] [Indexed: 01/09/2023]
Abstract
Colloidal semiconductor nanocrystals or quantum dots (QDs) are one of the most relevant developments in the fast-growing world of nanotechnology. Initially proposed as luminescent biological labels, they are finding new important fields of application in analytical chemistry, where their photoluminescent properties have been exploited in environmental monitoring, pharmaceutical and clinical analysis and food quality control. Despite the enormous variety of applications that have been developed, the automation of QDs-based analytical methodologies by resorting to automation tools such as continuous flow analysis and related techniques, which would allow to take advantage of particular features of the nanocrystals such as the versatile surface chemistry and ligand binding ability, the aptitude to generate reactive species, the possibility of encapsulation in different materials while retaining native luminescence providing the means for the implementation of renewable chemosensors or even the utilisation of more drastic and even stability impairing reaction conditions, is hitherto very limited. In this review, we provide insights into the analytical potential of quantum dots focusing on prospects of their utilisation in automated flow-based and flow-related approaches and the future outlook of QDs applications in chemical analysis.
Collapse
|
28
|
Mikšík I, Lacinová K, Zmatlíková Z, Sedláková P, Král V, Sýkora D, Řezanka P, Kašička V. Open-tubular capillary electrochromatography with bare gold nanoparticles-based stationary phase applied to separation of trypsin digested native and glycated proteins. J Sep Sci 2012. [DOI: 10.1002/jssc.2727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ivan Mikšík
- Institute of Physiology; Academy of Sciences of the Czech Republic; Prague; Czech Republic
| | - Kateřina Lacinová
- Institute of Physiology; Academy of Sciences of the Czech Republic; Prague; Czech Republic
| | | | - Pavla Sedláková
- Institute of Physiology; Academy of Sciences of the Czech Republic; Prague; Czech Republic
| | - Vladimír Král
- Department of Analytical Chemistry; Institute of Chemical Technology; Prague; Czech Republic
| | - David Sýkora
- Department of Analytical Chemistry; Institute of Chemical Technology; Prague; Czech Republic
| | - Pavel Řezanka
- Department of Analytical Chemistry; Institute of Chemical Technology; Prague; Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry; Academy of Sciences of the Czech Republic; Prague; Czech Republic
| |
Collapse
|
29
|
Analysis of Nanoparticles Based on Electrophoretic Separations. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/b978-0-444-56328-6.00002-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
30
|
Characterization of CdSe nanocrystals coated with amphiphiles. A capillary electrophoresis study. Mikrochim Acta 2011; 176:345-358. [PMID: 22347727 PMCID: PMC3267930 DOI: 10.1007/s00604-011-0727-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 10/13/2011] [Indexed: 12/11/2022]
Abstract
We have synthesized CdSe nanocrystals (NCs) possessing a trioctylphosphine surface passivation layer and modified with amphiphilic molecules to form a surface bilayer. The NCs covered with single amphiphiles are not stable in aqueous solution, but a mixed amphiphilic system is shown to provide stability in solution over several months. The solutions of the modified NCs were characterized by UV-Vis absorbance, photoluminescence, and transmission electron microscopy. An electrophoretic study revealed two operational modes. The first relies on the enrichment of NCs using a micellar plug as a tool. The accumulation of NCs at the plug-electrolyte buffer interface results in a sharp peak. By controlling the electrophoretic conditions, nanocrystals were forced to exit a micellar plug into an electrolyte buffer. We conclude that a system consisting of modified nanocrystals and a micellar plug can act as a mixed pseudomicellar system, where modified nanocrystals play the role of pseudomicelles. Electrophoretic focusing of amphiphile coated CdSe nanocrystals using a micellar plug. ![]()
Collapse
|